Enum homestar_invocation::task::Result

pub enum Result<T> {
    Ok(T),
    Error(T),
    Just(T),
}

Resultant output of an executed Instruction.

Variants

Ok(T)

Ok branch.

Error(T)

Error branch.

Just(T)

Just branch, meaning just the value. Used for not incorporating unwrapped ok/error into arg/param, where a result may show up directly.

Implementations

impl<T> Result<T>

pub fn into_inner(self) -> T

Owned, inner result of a Task invocation.

pub fn inner(&self) -> &T

Referenced, inner result of a Task invocation.

Trait Implementations

impl<'expr, T> AsExpression<Binary> for &'expr Result<T>

type Expression = Bound<Binary, &'expr Result<T>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<T> AsExpression<Binary> for Result<T>

type Expression = Bound<Binary, Result<T>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr, T> AsExpression<Nullable<Binary>> for &'expr Result<T>

type Expression = Bound<Nullable<Binary>, &'expr Result<T>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<T> AsExpression<Nullable<Binary>> for Result<T>

type Expression = Bound<Nullable<Binary>, Result<T>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<T: Clone> Clone for Result<T>

fn clone(&self) -> Result<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Result<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Result<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> From<Result<T>> for Ipld

where Ipld: From<T>,

fn from(result: Result<T>) -> Self

Converts to this type from the input type.

impl<DB> FromSql<Binary, DB> for Result<Ipld>

where DB: Backend, *const [u8]: FromSql<Binary, DB>,

Available on crate feature diesel only.

Diesel, Sqlite FromSql implementation.

fn from_sql(bytes: DB::RawValue<'_>) -> Result<Self>

See the trait documentation.

fn from_nullable_sql( bytes: Option<<DB as Backend>::RawValue<'_>> ) -> Result<Self, Box<dyn Error + Sync + Send>>

A specialized variant of from_sql for handling null values.

impl<T: PartialEq> PartialEq for Result<T>

fn eq(&self, other: &Result<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<__ST, __DB, T> Queryable<__ST, __DB> for Result<T>

where __DB: Backend, __ST: SingleValue, Self: FromSql<__ST, __DB>,

type Row = Result<T>

The Rust type you’d like to map from.

fn build(row: Self::Row) -> Result<Self>

Construct an instance of this type

impl<T> Serialize for Result<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToSql<Binary, Sqlite> for Result<Ipld>

where [u8]: ToSql<Binary, Sqlite>,

Available on crate feature diesel only.

Diesel, Sqlite ToSql implementation.

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Sqlite>) -> Result

See the trait documentation.

impl<T, __DB> ToSql<Nullable<Binary>, __DB> for Result<T>

where __DB: Backend, Self: ToSql<Binary, __DB>,

fn to_sql<'__b>(&'__b self, out: &mut Output<'__b, '_, __DB>) -> Result

See the trait documentation.

impl<T> TryFrom<&Ipld> for Result<T>

where T: From<Ipld>,

type Error = Error<Unit>

The type returned in the event of a conversion error.

fn try_from(ipld: &Ipld) -> Result<Self, Error<Unit>>

Performs the conversion.

impl<T> TryFrom<Ipld> for Result<T>

where T: From<Ipld>,

type Error = Error<Unit>

The type returned in the event of a conversion error.

fn try_from(ipld: Ipld) -> Result<Self, Error<Unit>>

Performs the conversion.

impl<T> StructuralPartialEq for Result<T>